EP 1431256 A3 20060426 - Process for hydrating anhydrite
Title (en)
Process for hydrating anhydrite
Title (de)
Verfahren zur Hydratisierung von Anhydriten
Title (fr)
Procédé d'hydratation d'anhydrite
Publication
Application
Priority
- DE 10259165 A 20021218
- DE 10330325 A 20030709
Abstract (en)
[origin: EP1431256A2] Hydration of anhydrite (I) comprises impinging aqueous solutions of mono- and/or divalent metal salt(s) onto (I) granulate. An Independent claim is also included for gypsum produced by this process.
IPC 8 full level
C04B 11/06 (2006.01); C01F 11/46 (2006.01); C04B 28/16 (2006.01)
CPC (source: EP)
C01F 11/466 (2013.01); C04B 11/06 (2013.01); C04B 28/16 (2013.01)
Citation (search report)
- [X] US 1941188 A 19331226 - RANDEL WILBUR S
- [X] CH 96840 A 19221116 - RUDOLF HENNICKE UND KALIWERKE [DE]
- [X] US 1898636 A 19330221 - LINZELL HARRY K
- [X] US 1442406 A 19230116 - RUDOLF HENNICKE
- [A] GB 561206 A 19440510 - FRANCIS ROBERT HIMSWORTH, et al
- [A] US 3906083 A 19750916 - GEORGE JAMES STANLEY
- [A] ANONYMOUS: "Latest developments at sandwith anhydrite mine", MIN J; MINING JOURNAL MAR 2 1962 LONDON, ENGLAND, vol. 258, no. 6602, 2 March 1962 (1962-03-02), pages 210 - 211 + 213, XP008060998
- [A] STEWART G E: "Billingham mine", INSTITUTION OF MINING AND METALLURGY OF LONDON - BULLETIN SEPT 1946 INSTITUTION OF MINING AND METALLURGY OF LONDON, LONDON, ENGLAND, no. 480, September 1946 (1946-09-01), XP008060997
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 03025950 A 20031113